Maine CDL Practice Test: Tank - Test 5 2020

Directions: To obtain this endorsement for hauling any liquid or gaseous materials in a tank or tanks, applicants must pass a 15-question test. And to pass the test, applicants must score at least 80%. Test questions are from the Maine Commercial Driver Handbook. The Tanker Vehicles endorsement can be used with the Class A, B, or C CDL. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Maine DMV locations.

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1. Typically, if a trailer is made before 1975 and equipped with air brakes, it will _________.

Use your signal

Turn the wheel

Change lanes

Increase your speed

2. What can cause a decrease in air pressure?

Decrease following distance to 2 seconds

Not be concerned about following distance

Increase following distance to 5 or 6 seconds

Maintain the 4-second following distance rule

3. How many digits are identification numbers of hazardous materials?

Continue to drive.

Read the labels on the drug before driving.

Drink alcohol instead.

Drive only during daylight hours.

4. Tanks can roll over easily because ____________.

When to do so would interfere with traffic.

When the car in front is disabled.

When passing to the right on a one-way street.

When turning left into a driveway.

5. Baffles in liquid cargo tanks do not usually prevent the liquid surge movement from _______.

Advance warning of a winding road.

Advance warning of a right curve.

Road curves right, then turns left.

Advance warning of a low speed sharp left curve.

6. The effects of liquid surge can be particularly dangerous for tankers driving on what type of surface?